Automatic throw-out mechanism for printing presses and the like



' vM rch i5 1927., y 1,620,800

a c. E. CHRISTOPHE. l AUTOMATIC THROW-00T MECHANISM FOR PRINTING PRESSES AND THE LIKE Filed May- 9, 192s e sheets-sheet 1 n n i IVAfzlwlllf g g l J u on O. {f} L l5 1927. "115205800 March c. E. CHRISTOPHEI.

AUTOMATIC THROW-OUT MECHANISM FOR PRINTING PRESSES ANI.) THE LIKE 6 Sheets-Sheet 2 Filed May 9. 1923 .m wg K l. i @a l. 1| h 1.1.2510..- ...j u .A b\ N H um lm a NVS M H m w. Wb *vnvlmOw .HH .A hl m1 u .r 19% L .S 7. i @Y l@ QN @W M m GNN mi 90 u 1H. v ,d L im L L i L \I\L Y Il llli.

ATTORNEYS AUTOMATIC THROW-OUT MCHANISM FOR PRINTING PRESSES AND THE LIKE Filed May 9. 1923 s sheets-sheet 5 IN VEN TOR March 15 {1,927.

. l 1,620,800 C. E. CHRISTOPHEL Y AUTOMATIC THROW-OUT MECHANISM FOR PRINTING PRESSES AND THE LIKE Filed May 9, 1923 6 Sheets-Sheet 4 INVENTOR i f N wl. S ATTORNEYS 1, gan@ March 15, 1927.

, jc. E. CHRISTOPHEL OUT MEGHANISM FOR PRINTING PRESSZES AND THE LIKE AUTOMATIC THROW- Filed May 9.` 1923 6 Sheets-Sheet 5 ATTORNEYS March 1 5, 1927, I 1,620,800l

C. E.. CHRISTQPHEL AUTOMATIC THROW-OUT MECHANISM FOR PRINTING PRESSES AND THE LIKE .Filed May v9. 1923 6 Sheets-Sheet 6 ymechanism is illustrated UNIT lli: l

,I l f A. T-EfijlPrice.

CARL n, cnnlsror'nnn, or" 'PEARL RIVER, NEW YORK, AssIerivontro DEXTER FOLDER COMPANY, or PEARL RIVER, NEW Yoan, A CORPORATION l'or "NEW YORK,r4

AUTOMATIC THROW-OUT ivncniinrsn Fon PRINTING -rnnssns ,AND THE LinEx",i

IApplication filed 9,

litis common in the :art to provide printing presses with automatic throw-out mechanism `controlled by sheet actuated tripping vdevices so arrangedl that the press and `automaltic feeder connected therewith willl 'be automatically thrown out when a sheet ails Ato reach registered position at the front One Ifoi-inV ot such l in U. S. Patent No. 1,143,630 datedJ une 22nd, 1,915.

The present invention comprises broadly inprovidiaig some form yof throwout mecha# nism for .machines designed to operate upon sheets incombination with a controlling degauges of the press.

i tector yoperated bythe side registering meven ment of a. sheet. vrThe improved mechanism I v.colorMiehle' printing press equipped witha is :prefer-ably, though not necessarily, einployed in combination with a controlling mechanism actuated by the iront registry ot the sheet,.so that the press or other machine will be automatically thrown out in vcases where the sheet fails to reach registered position either sidewise or lat the front gauges.

- ure '5 sinned when asheet` tails :to be properly ysid'ei In order that the inventionmaybe fully Y understood it Vwill first be "described with reference' to .the accompanying drawings and afterwards pointed out. more particu,`

larly in fthe annexed claims.

. In said drawings: l i

Figure l 4vis fasid'eelevation of parts of a printing press land automaticvfeeder illustraiting the improved throw-out lmachanisin.z

Figures 12 and 2a illustrate together a per- V spective'view of the deliveryend of the con. veyor looking dow-n and toward the rear of` the 'conveyor Jfromy a `pointabove the press f feeder to thefront gauges ofthe press yin a"v cylinders. v

Figure 8y is an enlarged detail lside elevation Aof the front or delivery endet the conrepresenting the parts in vtheir 'normalposif tion when a sheet of paper has been fed .to

the .front gauges and moved laterally 4intov side Vregistered position; while lFigproper shows the parts in the position fasregistered and the press throw-outis oper- Figures ldevices arranged at the .front gauges yof the 'tered vatthe press gauges.

Vway in the relationsthey5 y.bear to the im# ieee.' serial No. 637,826.

of theftlarow-out 'mechanism controlled by 'the side register trips, Figure 62L being 1a detached vieW lookingvfrom the right of* i 1,lt3,680,the press .tlu'owbutand the. Operating and controlling devicestherefor 'being very similar although in vthe .structure of said patent the control is entirely throughy the medium of the "sheet actuated tripping` press. A y. n Y y.

Figure l illustrates a. well known ltwo Dexter automatic suctionvfeeder. It Willbe unnecessary to vdescribe `the details 2of" the printing press, its operating mechanism, its throw-out mechanism, or the structure of the automatic feeder, since various types of these" mechanisms are wellkiiow-n inthe art and the specificstructures form no part of the present invention. It' will be .sufficient to point out'that the spring actuated tripping plate 1,nor'mally held out offaction .byia dog 2 :under the-control of a vertical movable rod v3', is designed tovoperate throughv suite azblev'mechanism forr arresting the printing 8'5 press Iand feederand separating the impres= i sioncylinder from Ithe :toi-m. The feeder is driven by a suitable', train of auxiliary .geared shafts f6, 7 `from the printingripress;

Sheets are'successivelyseparated .and fed 90" from 'the automatic vteeidertothe conveyor belts 10, which car-ryvthe sheets '.rom` the well `known'maiiner.. n f.

, At the front or delivery end ost rthrefcon-kl at 25 vrest upon the feed board 26 roi :the press proper and support between fthe-m suitable transverse shafts and tie. rods, which 'carry-k and operate the mechanisms for actingfupon the successive sheets delivered vlto theV lpress gauges. These mechanisms vcommonly `embody slow-down devicesV orproperly pre1 y f i seiiting the sheets to the front gauges and sidejregistering devices for positioning the sheets laterally after they have :been VVVregis- These usual 'devices fory handling sheets :delivered to the press will be referred to only in va general `cofr ico proved sheetcontrol of the press throw-out. Suitably journalled in one of the auxiliary side frames 25 of the conveyor frame above referred to is a cam shaft 35 carrying at its` outer endy a m'iter gear 36 meshing with a similar-gear 37 secured to the end of an inclined shaft 38 extending from the gear pla-te of the feeder, which is driven by the shaft above referred to. j This cam shaft 35 has keyed to it a cam 40 for actuating the throw-outA operating rock shaft 41`and a cani 45 for operating the trip or controlling rock shaft 46, both of which mechanisms ywill be hereinafter described in the order mentioned. Shaft 41k is. mounted inthe tubular shaft 41a which actuates theV top members of the side registering devices in a manner well understood. `The cam shaft 35 has also mounted upon yit vbetween lthe above named cams, a gear wheel meshing with a pinion51 keyed to one' end ofz'an auxiliary shaft 52, wh-ich extends entirely across the front end of the conveyor frame `and is provided adjacent `its opposite ends with the adjustably mounted miter gears 53, which gear with and operat-e theside registry mechanisms of any preferred construction.k These side registry mechanisms are illustrated in av general way at 55, each being mounted upon a laterally adjustable bracket including' an underguide plate 56 formed in` its outer edge' with a notch orrecess 57 for Vthe purpose hereinafter explained.

60 is a switchbox controlling the electric motor that operates the press. This switch is under the cont-rol of a throw-out bell crank lever 'having one arm connected to the rod 3 above referred to and another arm .connected with a rod 0 connected to the upper end of a throw-out lever 71 pivoted to the machine frame at 72. Means for operating the throw-out lever 71 comprises a rod 75 pivoted to lever 71 at 76 and passing toward the press through a guideyoke 77 in which is mounted, av spring supported plunger 78, on which rod rests. and by which the rod is y 1 yieldingly held in its upper `operative position. Rotatably mounted 'in the yoke 77 above the rod 75 andmember 7 8 is an eccentric 79 having a finger piece 80 by which itcan be rotated lfor holding rod 75 downwardly in its lowered inoperative position when the automatic throw-out is not to be used as in handfeeding. o

This throw-out rod 75 carries a tappet block which is adjustably mounted upon the rodiby means of set screw 86. This tappet block 85 rests, when rod 75 is in its raised position, in the path of the foot 91 of Va rock arm 90 vkeyed to the end of the throw-out operating rock shaft 41 above ref ferred to.y This rock shaft 41 carries at its opposite end adjacent to the cam 40 a rock arm 93 having antifriction roller194 operating in peripheral engagement with the cam 40 referred to. A spring device 95 acts upon rock shaft 41 in opposition to the cam 40. lVhen shaft 41 isrocked by cam 40 and tappet block85 is in the pat-h of the foot 91, the motor switch and press vthrow-out will be operated in a manner well understood.

The rod 75 carrying tappet 85 is normally supported in its elevated position in readiness for engagement by the rock arm referred to on any of its periodic movements.

The tappet 85 must be lowered out of the path of rock arm 90 every time a sheet passes to the press. This automatic lowering of tappet 85 is controlled by the position of the successive sheets through the mechanism which will now be described. v

The controlling rock shaft 46 above referred to carries atone end a rock armwk to which is pivoted a link 101 having slot 102 engaging fixed guide pin 103 and carrying at its lower end afreely journalled grooved roller 105 which rests in engagement with the rod 75. This controlling rock shaft 46 also carries a rock arm 110 to which is pivoted a slotted strapr 112 guided upon the edge of the sheet and normally rest-ing in the path of the notched forward ends 117 of the feeler rods 117 adjustably lmounted in the lower ends of rock arms 118 adjustably mounted upon rock shaft 46. Each time the rock shaft 46 is moved the feeler rods 117 move forward slightly and in the absence of a sheet at either ofthe front gauges will engage one of the trips 116 to prevent the full rocking motionof rock shaft 46. If, however, the sheet is in proper registered position at the. front gauges, both trips 116 will be shifted so as to permit the feeler rods 117 to move past the trips to permit the coinplete motion of rock`A shaft 46.- gauge detector mechanism for controlling the press throw-out is specifically old in the art.

In addition to the control of rock shaft 46 by the front gauge detectors referred to, the present invention vcontemplates the use (either in conjunction with said front gauge detectors or independently o-f them) of the controllingl detectors actuated by the sidek registry of the sheets as will now be exiplained. Rock shaft 46 also has adjustably mounted upon lit the depending' rock arms formed in. their lower ends *withy yokes 126, in each of which is mounted a pivotpin` 127 extending parallel with the vertical `longitudinal plane of the feed. Freely pivoted This front; l

'unen they pin 127 is a side register vdetector blade or finger 1130 which is free to kmove v upon its pivot-transverselyvoi the feed, but

which provides anextension of rock arm 19.5 which is rigid therewith longitudinally :of t-he feed. This detector blade 130 normally rests in engagement With the notch 57 of the side register underguide plate `56 above referred to, to normally lock shaft 46 aga-inst its spring action and hold lthe antifriction roller 113 out of the low portion of cam y :as indicated in Figure 3. Rock shaft 46 isprovided with `two of these side registry detector controls, one being employed in conjunctionfivith each of the `side registering mechanisms, it bei-ng of course understood that only one of the sidecontrols is in use at one time, the other being shifted out of action. when notvin use. i y

The notched edge of each .underguide plate 56 should bein longitudinal alignment with i the sideregistering ,gauge face (not shown) vwith which -it is employed, since the trip 13()` is released `from locking engagement with vthe notch 57 bv the movement ofr the `sheet into side registry position. i I

The: operation of the improved mechanism will be clear With but a fevv Words of eX- planation. As the successive sheets are fed from theautomatic feeder to the front gauges of the press the front registry trips are actuated to move ont ofthe path of feeler rodslli'j. and the action of theside register of the sheet disengages the trip 130 from the 11o-tch of the side registrv.'underguide so that the rock shaft 46 is freed from the frontand side registry controls and is permitted vto rock When the low portion of cam 45 The rocking of shaft f reaches roller 113. 46 lowers the tappet 85 out of t-he path of foot 91 of rock arm 90 when the rock shaft 41 moves, as shown in Figure 4, it being understood that the controlling cams 40` and 45 are timed to produce this successionof actions.v In the event. that a sheet fails to reach proner position either at the front or side registry controls, the rock shaft 46 Will be heldy against movement with Vthe result that tappet Will remain in the'path of rock arm 90, asshown in Figure 5, so that.

`the press throw-out vWill be operated.

I claim:

1. In a sheet feeding machine, the combination of throw-out mechanism, means con trolling the operation of the same including a shaft, a front registry detecting device operatedr from said shaft, a side registry detectjecting into the path of the sheets, and means normally holding said side registry detecting device in position to prevent rotation of said shaft, said side registry detect` ing device'being moved into position by the sheets to permit the rotation of said shaft.

2. In a sheet feeding machine, the combi- Y from said rock-shaft into the pathv of sheets,

ing device mounted on said shaft and pro` nation of throw-out mechanism., :means controlling the operation of the sameffmclu'd'- lng vashaft, la nair of front registry detect ing elements roperatedfrom said shaft.` a side u registry detecting` element on v,each side of the machine mounted on said shaft and depending therefrom and projecting Ainto the path; of thesheets, means co-ntrolled 'by said aelements*preventinejthe rotation lof said shaftvvhen the sheet is out registry with the front elements Iand one yof said side element-s, i said front elements `and one `of said side :ele-

ments being moved by the sheet when it is properly positioned :to permit i-novc'ment ofv said shaft.

3. In asheet feeding. machine, the com-bination with throw-,out mechanism, of means p controlling the sa'me'including a rock-shaft, a side registry detecting finger projectingshaft, said device being moved by the sheet '1 out of engagement with saidmeanswhen properly positioned to permit the.` rotation of .said shaft.

5. `In a ,sheet fee-ding machine, 4the combination of throw-out mechanism, means controlling the same including a shaft, a side registry detectingvdevice mounted on and depending from said shaft into the path of the sheet, and means positioned to engage said device andprev-ent movementof said shaft, vsaid device being moved by the sheety ont of engagement with said means when yproperly position-ed to permit the rotation of said shaft, a front registry detecting dee'.`

vice including a parir of pivoted elements one l arranged on either side of the medial longitudinal line of the sheet, and means mounted on said shaft and engaging one or both of said pivot-ed elements to prevent rotation of lsaid shaft in the event that the front edge of the sheet is not properly positioned.

6. In a'sheet feeding machine, the com-V bnation of throw-out mechanism, meansv controlling the operation of the same includ-lv ring a rock shaft, two. controlling rock arms projecting fromv said shaft, a front registry l detector device, a feeler mounted on one of .i saidj rock armsand adaptedto engage said device in the absence of a sheet, and a side registry detector device mounted upon the other of said roel: Yarms and positioned in the path of the sheet, each of said detectors being adapted to prevent the action of said rock shaft in the absence of a sheet from its respective detector station.

7. The combination with a machine designed to operate upon sheets passed through it, and stop mechanism adapted to arrest the action of said machine, of operating means for said stop mechanism including relatively movable enacting members by which the stop v mechanism and its operating means are con nected and disconnected, an intermittently acting rock shaft controlling the operative relation of said members, a rock arm mounted upon said rock shaft, a side registry detecting finger pivoted upon said rock arm to move in a plane parallel with said rock shaft, and anotclied sheet guiding plate in the notch of Which said detecting finger engagesvto normally lock the rock shaft against detecting finger pivoted upon said rock armV to move in a plane parallel Withsaid rock shaft, a sid-e registry device, and a notched sheet guiding plate associated with said side registry device, said detecting linger nor-` mally engaging the notch of said guiding plate to lock the rock shaft against motion.

9. The combination Wit-h a machine .designed to operate upon sheets passed through vit, and stop mechanism adapted to arrest the action of said machine, of operating means for said stop mechanism including relatively movable coacting members by Which the stop mechanism and its oper-v ating means are connected andy disconnected, one of said members comprising a cam-operated roclr shaft carrying a throw-out actuating i'ocl; arm, a second cam-operated rockv shaft extending transversely of the path of sheets, a controlling rock arm fixed upon said second rock shaft and movable therewith in a vertical plane parallel With the 'path 0f sheets, a side register detector ingerpivot-l ally mounted upon said controlling rock arm to move freely transversely of' the path of sheets, but immovable upon said rock armiin the path of movement of sheets, and an underguide plate formed with a. notch in its outer edge in which said detecting finger normally engages for preventing the operation of said second rock shaft.

CARL E. CHRISTOPHEL. 

